code: def open_perf_table(table_ref):
      for key in table_ref.keys():
          sql = "select * from main.%(table_name)s" % {
              "table_name": key.table_name
          }
          return pyblazing.run_query(sql, table_ref)
  
imports: import time
  import pandas
  import pyblazing
  from pyblazing import DriverType, FileSystemType
  from sklearn.model_selection import train_test_split
  import xgboost
  from Configuration import Settings
  from DataBase import createSchema
  from DemoTest.chronometer import Chronometer
  from Utils import Execution
label_desc: Use image node_id 5 for calling a global function with example usage: open_perf_table(table_ref) and returns: pyblazing